Discovery of seven companions to intermediate-mass stars with extreme mass ratios in the Scorpius-Centaurus association
We report the detection of seven low-mass companions to intermediate-mass stars (SpT B/A/F; 1.5-4.5 M<inf>o</inf>) in the Scorpius-Centaurus (Sco-Cen) Association using nonredundant aperture masking interferometry. Our newly detected objects have contrasts 4-6, corresponding to masses as low as ∼20 M<inf>Jup</inf> and mass ratios of 0.01-0.08, depending on the assumed age of the target stars. With projected separations ρ ≈ 10-30 AU, our aperture masking detections sample an orbital region...[Show more]
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|Source:||Astrophysical Journal Letters|
|01_Hinkley_Discovery_of_seven_companions_2015.pdf||196.03 kB||Adobe PDF||Request a copy|
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